Quick answers
- Does Carolyn M. Larsen accept Medicare assignment?
- Yes. Medicare's clinician data says Carolyn M. Larsen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Carolyn M. Larsen see?
- In 2024, CMS data shows 2,357 Original Medicare patients and 5,221 services for Carolyn M. Larsen. This counts Original Medicare only and measures volume, not quality.
- What is Carolyn M. Larsen's NPI number?
- 1164743829. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Carolyn M. Larsen, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 2,357 |
|---|---|
| Services billed to Medicare | 5,221 |
| Different services or procedures | 50 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Injection, regadenoson, 0.1 mg (J2785)817 services
- Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)640 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)510 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)366 services
- Outpatient heart rehabilitation, qualified health care professional services (93797)299 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease52%
- Arthritis49%
- Atrial fibrillation43%
- Heart failure41%
Hospitals where Carolyn M. Larsen works
Medicare's Facility Affiliation Data lists Carolyn M. Larsen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Bellevue Medical CenterBellevue, NE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 280132
- Crawford County Memorial HospitalDenison, IA · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 161369
- Mayo Clinic HospitalPhoenix, AZ · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 030103
- Shenandoah Medical CenterShenandoah, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161366
- The Nebraska Medical CenterOmaha, NE · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 280013
Practice locations
Addresses where Carolyn M. Larsen is enrolled with Medicare (CMS data updated October 2, 2026).
- 13400 E Shea BlvdScottsdale, AZ 85259 (480) 301‑8000
- Emile 42nd StOmaha, NE 68198 (402) 559‑4015
Group practices
Medicare enrollment lists Carolyn M. Larsen as a member of these groups (CMS data updated October 2, 2026).
- Mayo Clinic Arizona1,626 clinicians in the group
- UNMC Physicians1,518 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Arizona →
Other cardiologists in Scottsdale
Clinicians with the same Medicare primary specialty in Scottsdale, AZ — not a recommendation.
Other clinicians in Mayo Clinic Arizona
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Creighton University School Of Medicine |
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1164743829 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians